Home / 19,948.80-27,540.80-13,243.48

Finding the Fourth Proportional to 19,948.80, 27,540.80 and 13,243.48

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Solution

The fourth proportional to 19,948.80, 27,540.80 and 13,243.48 is: 18,283.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,948.80 : 27,540.80 = 13,243.48 : x
  2. Step 2: Convert to fraction form
    19,948.80/27,540.80 = 13,243.48/x
  3. Step 3: Cross multiply
    19,948.80x = 27,540.80 × 13,243.48
  4. Step 4: Simplify right side
    19,948.80x = 364,736,033.98
  5. Step 5: Solve for x
    x = 364,736,033.98/19,948.80
  6. Step 6: Final answer
    x = 18,283.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.